Core machine



CORE MACHINE. APPLICATION FILED ocT. 27, I9I9.

' 2 SHEETS-SHEET I.

' WITNESS.-

I II i E32' 'INI/ENTOR.'

` Georg M60/no ATTORNEY.

- Patented Aug. l, 1922.

G. W. COMBS. CORE MACHINE. APPLICATION man ocr. 21. 1919.

2. 7M 2. .m me C WNS.v e .mw w dS. O e2. t m 4 nw V. P B

WITNESS:

A TTORNE Y.

Geenen WILLIAM comes, Lnavnnwonrn, Kansas.

CUBE MACHXNE. i

Specification of Letters latent.

Application leflctober 27, 1919. Serial No. 333,747. y f

lect ls t0 PFOVfle a Simple andinexpensive machine oi this character whereby cores ot different lengths and shapes can be rapidly and accurately produced at small cost.

further object is to overcome loss by breakage or disigurement of cores as'they are 'removed -from the core die of the machine. Other objects willhereinai'ter appear, and in order that the invention may be readily understood, reference will now be made to the accompanying drawings, in which:

Fig. l is a plan view of the machine.

Fig. 2 is a side elevation of themachine.

Fig. 3 is a fragmentary `plan view partly in section of certain lparts of the machine.

Fig. 4 is a cross section on line lV-lV of Fig. 1. y

Fig. 5 is a rear elevation of an ejector cmployed in carrying out the invention.

Fig. 6 is an elevation of any element .for tapering one end ot the core.

Fig. 7 is a detail ot an ejectorelement.

Fig. 8 isa longitudinal section partly in' elevation' ol' a modified form of certain parts of the machine.

In carrying out the invention, l employ a bed plate 2 provided with legs 4 adaptedfto rest upon a workbench or other'suitable support.

6 and Sdesignate two corrugated core trays resting upon the bed plate 2 and having abutting adjacentends, as disclosed on Fig. l. The trays 6 and 8 are held from lateral displacement by flanges 10 projecting upwardly from the"`longitudinal sides of the bed plate 2. n The1 tray 6 is removable while the tray 8 is secured to the bed plate 2 by suitable means such as screws 9.

The rear end ot the bed plate 2v is provided with a lever 12 mounted at one end upon a pivot 14, extending through a pair ot lugs16 projectingupwardhT 'trom one corner of the bed plate 2. Thefree end ot the lever 12, when in lowered position, is held from lateral displacement by a pair of lugs 18 projecting upwardly from the corner ott-the A bed plate 2 opposite the lugs 16. The lever l2 is provided on one side withabutments :26. The abutments 2O are arranged to regis` ter with the grooif'ed portions 24 of the trays 6 and S, as disclosed on Figs. 1 and 4. f i

26 designates a tubular core die adapted to slide in any of the grooves 24 of' the travs 6 and 8. Said die 26 is provided withla handle 26 whereby it may vbe readilvxmanipulated. 'u Q 30 designates; an ejector which holds the core A from moving with the die V26 when the latter is slid baclrwardly from ol'lsaid core A. The ejector 30 consists of a tubular rod 32, and elements 34 and 86. The element 34 is removably secured to the forwardend" roi the rod 32 by suitable means such was screwthreads 3S and has a plane surface 4() at one side and a tapered internal portion 42 at its opposite side,` as disclosed more clearlyv7 on 3. i with two diametrically`y opposed holes 44 'through which wires 46 `may be inserted for reinforcing the `core A. f

yThe element 86 is slidably `mounted upon'v the rod and provided with suitable means', suchae a set screw 46 to secure it at any point oi" its adjustment. Said element 36 isiPatented flug. Li

The element 34 is also `provided also provided with oppositelydisposed slotsv j 48. through which the wires 46 may be introduced into the holes 44when the element 36 is adjusted close to the element 34, as dise` closed by dotted lines on 2. Therele-` ments 34 and 66 are oi less diameter than the'interior ot the die 26, so that the same when being` removed troma core mayslide 'freely over said elements. f

he tubular rod 32 hasascale 50. which constitutes a guide in adjusting the element 86`to any predetermined point on said rod 32`when cores of made. y f

52 designates an element somewhat simi lar in shape to the element 34, itfhaving a tapered intern al surface 54 to taper the front end oi the core A. provided with holes 56 through which the reinforcing wires46 may be inserted lit de` sired,l instead of through the holes 44. The element 52 is provided with a peripheral shoulder 5S which acts as a stop-in limiting the inward movement of the element into the adjacent end of thedie 26. Said shoulder 58 also constitutes a convenient gripping diiierent lengths are to be Said; element 52 is ralso 1 surface, so that the @lement 52 may be readv'that the .ejector 30 may ivandly until the forward eide of the element Wardly into stl the die.V i The .e261 .and placed on the ,tra

, ily inserted or Withdrawn from the` endlof.v

the diel26. f 'i 59 designates anejector element'to' be used i in conjunction with the ejector 30, ingpjah ing 'cores considerably shorter than the j 'die26. l

designates a vvire for forming a longi-V tudin'al vent openin inthe core Pref:

erably, said Wire 60 1s equal to the combined j lengthxoi lthe die 2,6 and the ejector. 30, so

that it maybe inserted through theV tubular rod- 32,I which acts as a guide in centering` Ithe Wire 60While being pushed through the axis, of: thecore A. However, a shorter Wire may be used Wheninserted 'through a central j openingl62inithe element 1 practicewvhen cores et substantially the same length as the die 26 are to be made,

the? element 34 isi'nserted inthe rear` eno oft4 said die 26 as disclosed on Fins. l, 2 and' 3.

1li Y The ldie 26 is then filled with sand', after lenoths fori making eores ogtdiiferent lengths.

which it' and the ejector() areadjusted toa vertical `position and the rjod 32 isV placed in the slo-tj ofa Work bench to allow the rear side 'off the element 34 to` restupon. the top ofsaidivorl benchlwhile the sand ta-inped orpacked intolthe die26. `The element 5.2 is

i then! pressedi into 'j the fonivardendfof. the die 26,1 Which is then ylaid in oneiot ther grooves 24: of 'thezifront tray, with the ele` ment V36 of: the ejector 30` bearing againstone off the abutments 2O.- The handle 28 is thenigrasped and the die 26 is slid back,-

` dvvardly over the ejector 30, leaving the core Aerestmg.; upon the tray 6. The lever l2. is

then thro-Wn' upwardly as shown: in full lines.v

on'Fig'. 3',-and in dotted lines on Fig. el', so

34e clears the core A. The element 52 may now be removed from the oryvardend: of the.l core A, or lit preferred, it mayl be refmovedfbefore th-e die 26 is slid baclmfardly tobel used they areinsertedivhi-le `the parte,

` f are in :the position disclosed by Fig.v The vent Wire 60 is likewise used to vent the core. While they parts `are; in the ya.torementionediV positiomf excepting that said vent ,Wire 60de Withdrzuvvnbefore the die 26 is moved b21-cle' Wardly olf .the corel A.

ll/ThenV cores shelter than 'the 2.6 are. f tofbefmade, the ejector element 36 isadjustedTorWard-"ly upon therod totlfie proper pointand' the ejector30'isgthen adjusted flierM p j die 26 until the rear; side of, said ele-ment; 3 is ilus-h` ith the rean end of (mirlV 8 with the "l *ejector the Whole being adjiusted rear? be (moved, backldistance and afterA the die has been filled with sand it is placed Wholly upon the tray 6.

kThe extension element 5,9 is then interposed between the riear end of: the ejector rod 32 and; one of the abutments2@ to hold the ejector.YK from backward movement when the die 26 is slidbackivardly to deliver the `rst core. ln making the secondi core, the ejector `30de adj usted forwardly, into the die26 as before, but after' the `die hasbeen filled.

with sandit isplaeed upon both traysand 8, to allow the; rearend of the ejector rod 321to yengage one of theabutments 2 0. j

, llhe-elements'ane provided in dille-rent` present its stnaight` sigdeAOtQ the adjacent end of thefcor'e/a-nd theelement 52 isdis]-i pensed: with; the sand; being struck olif ijiush With the foire/and end o-fftheidie 26vvhengthe core isfiormedl v j j I `The dies' arev made inidiiierent sii/,Jes and shapes to produce any desiredr Core.

In the modifiedy folm disclosed by.' 8,-

the parts similar to the parts of the prej- 'ferred' form aireI 'coijrjespondingly numbered With exponents a. vThe chiefdierencere,-` sides in the ejector 3,0?, Whieh is: more simple in construction and vineQzpensive to `Iigitnur facturethanqthepreferred term, j In practice, the ej ectors 30L Willi be Inaide;` in differentlengths flor coresofy different lengths.

l Having thus described my invention, what` I claim and desire, td-secure Letters l?ate1 it,is:vi u nl. Ina machine off the character described,

- a tubular core die ladapted to be slipped olf ottheenclosed @Ov-e, ali-.element flttllefwithsaid die and abuttinggoneend of thevcore to prevent longitudinal movement ofthe latte-r. during removal of. thejdie, a rod eX- tendingl outwardly from 'said element, a sec-` ond elenfienty to. suppoitltheouter end ofthe rod, means to preventlongitudinal movement 01` Said red, ende seppr't for the ldie .and the core.; l v

In a machine of the character described, a tubular `core j die adapted a to be slipped oil of theenclosed core, an element fitting vWithin said die and abuttingl one end-ofthe i @015e te `prevent' longitudinal. movement Of `thelatteiI during ,removal otheydieya rod extending i @inwardly freni. said element, a

iso

`taper the Yforward end of the core.

4L. In a machine of the character described, a tubular die adapted to be removed 'from cores formed in said die, a'support upon which said die slides to deposit the cores upon said support7 and means to prevent longitudinal movement of the cores relative to said support during removal of the die. i

5. In a machine ot the character de* scribed, a tubular die for forming cores, an element associated with said die to taper one end of each core and provided with a centrai opening, and a rod adapted to be passed through said opening to vent each core.

6. In a machine of the character described, a tubular die for forming cores,-an element associated with said die to taper one end of each core and provided with a plurality of openings,` and members adapted to be passed through said openings to reinforce each core. f

7. In a machine of the character de-` scribed, a tubular die Yfor forming cores, and an ejector associated with said die and consisting oi an element adapted to be introduced into said die, a rod connectedat one end to said element, and a second element adjustably mounted on said rodtfor the purpose described.

In testimony whereof I aiiix my signature,

in the presence of two witnesses.

' GEORGE WILLIAM COMES. Witnesses: y

F. G. FISCHER, L. J. FISCHER. 

